Rotary engine.



A. M. CONDIT.

ROTARY ENGINE.

APPLIOATION FILED 111111.27, 1912.

1,061,452. Patented May 13, 1913.

3 SHEETS"SHEET 1.

A. M. GQNDIT.

ROTARY ENGINE.

APPLICATION FILED MAR.2'7, 1912.

Patented May 13, 1913.

3 SHEETS-SHEET 2.

wi lmmo A. M GONDIT.

ROTARY ENGINE. APBLIOATION FILED mum, 1912.

1,061,452. Patented May 13, 1913.

3 SHEETS-SHEET 3.

STAT$ ARTHUR M. CONDIT, OF EAST ORANGE, NEW JERSEY.

ROTARY ENGINE.

Specification of Letters Patent.

Patented May 13, 1913.

Application filed March 27, 1912. Serial No. 686,523.

To all whom it may concern Be it known that I, ARTHUR M. CONDI'I, acitizen of the United States, and residing at East Orange, in the countyof Essex and State of New Jersey, have invented certain new and usefulImprovements in Rotary Engines, of which the following is aspecification.

This invention relates to rotary engines in which either the stator orrotor may be provided with blades movable into and out of position, inwhich they cooperate with fixed abutments to form expansion chambers forthe motive fluid.

The primary object of this invention is to provide an improvedconstruction, combination and arrangement of parts in devices of thischaracter, whereby they can be simply and economically constructed andrendered durable and efiicient in operation.

Toward the attainment of these objects the present inventioncontemplates the pro vision of blades which rotate continuously in onedirection so as to eliminate as far as possible, the jars and shockswith the accompanying rattle and lost motion which is present in adevice of this character in which each blade moves first in onedirection and then in the opposite direction. The advantages tobederived are apparent when it is considered that in a rotary engine ofthis character which runs at 2,000 B. P. M., each movable blade must beaccelerated from rest to a maximum speed and retarded till it is at restagain, 4,000 times during each minute which it runs. Furthermore it willbe evident that the inertia of these blades at each reversal exerts agreat tendency to 7 parts being broken away and parts shown in section;Fig. 3 is a front elevation of the rotor removed from the housing; Flg.4 1s a detailed elevation of one of the rotating blades; Fig. 5 is anelevation similar to Fig. 3 showing a modified form of my invention.

Referring more particularly to the drawings and first to the embodimentshown in Figs. 1 to 41:, inclusive, the rotor housing comprises sections1 and 2, provided with oppositely disposed bearings 23 and 4, withinwhich is journaled the shaft 5 of the rotor comprising a plurality ofrotatable blades 6, which are journaled on axes extending radially fromthe shaft 5, being mounted respectively on stub shafts 7 with spur gears8 secured to the inner ends of said stub shafts. A plurality of radiallyarranged spindles 9, which are provided with pinions 10 on their outerends, which mesh with the gears S, and on their inner ends are providedwith bevel pinions 11, which mesh with a fixed gear 12 carried by thesection 2 of the housin The numbers of the teeth in the gears 8, 10, 11and 12 are suitably proportioned in the present embodiment of myinvention to provide a complete rotation of each blade 6 in every tworevolutions 01'' the rotor, this construction and arrangement of theelements adapting the machine to receive the motive fluid through aninlet pipe 13 (see Fig. 2) during a portion of a revolution, usedexpansively during a second portion, forming a dead steam chamber duringa third portion and exhausting during a fourth portion of suchrevolution through an exhaust pipe 14. As shown in Figs. 1 and 2, thehousing sections are provided with annular grooves 15 and 16 forming athrough *ay, within which the projecting portions of the blades moverelatively to the fixed abutments 17 and 18, which are mounted in thegrooves 15 and 16 intermediately of the inlet ports 10, leading from thesupply pipe 13 and the outlet ports 20 leading to the exhaust pipe 14:.As shown in Fig. 4:, each of the blades comprises a cen tral block 21,which is carried by its spindle 7 and provided with oppositelyprojecting wings 22, which as shown in Fig. 6 are provided with curvedouter edges and with profiles adapting them to substantially fit theannular grooves 15 and 10 as they revolve therethrougl'i.

The ope 'ation of this embodiment of my invention will now be understoodand briefly stated is as follows, reference being had more especially toFigs. 2 and As seen in Fig.

2, each blade as it travels between theoppositely disposed fixedabutments, is caused to assume a position fiatwise, with respect to thecentral plane of the housing, lying in this position entirely within therectangular recess 23 to permit it to pass without interference. As theports 19 are continuously open, the motive fluid passes into the housingbehind the blade and between it and the fixed abutment from the time itleaves the fixed abutment until the next blade cuts off the fluid in themanner to be presently pointed out. Such cut off occurs only after theblade has rotated approximately into the position shown in the upperportion of Fig. 3 which closes the compartment formed between it and thenext blade in advance, while at the same time cooperating with the fixedabutment to form an expansion chamber. From an inspection of- Figs. 2and 3 it will be seen that as each movable blade reaches the out offposition, it forms with the next movable blade in advance, a dead spaceduring approximately the next quarter of a rev-' olution of the rotor,thus forming an efiicient fluid tight packing for the blade which isexposed to the expansive force of the motive fluid. As the movement goeson, the fluid entrapped in this dead space is released in ample time tobe discharged freely through the exhaust pipe 14 without creating anundue back pressure upon the rotor.'

. In the embodiment shown in Fig. 5, the rotary blades are caused toassume a position fiatwise to the central plane of the rotor atapproximately each half of a revolution. By this means two fixedabutment-s not shown on the drawing are arranged at diametricallyopposite points in the housing to permit the employment of an inlet pipe24: and a discharge pipe 25 to be pumped adjacent one fixed abutment,the corresponding exhaust pipe 26 and inlet pipe 27 being arrangedadjacent the opposite fixed abutment. The principle of operation of thisembodiment of my invention being the same as that already described,need not be explained in greater detail.

In both adaptations of my invention shown on the drawings, certainconstructional features have been embodied, but inasmuch as they aresubstantially similar in both embodiments, they have been fully shown inFig.1 only. Thus the rotor com prises two disks 28 and 29, which arerigidly secured together and made fast upon the shaft 5 in any suitablemanner, such as by the screws and flange abutments shown in Fig. 1.These disks are provided with out out portions adjacent their outerperipheries, which register with each other to form the rotary bladerecesses 23. It will be seen that each of the spindles 7 is journaledpartly in each of the disks 28 and 29, the spur gears 8 on the innerends of said spindles being disposed in recess 30.

Upon the outer lateral face of the disk 29 is secured an annularpedestal 31, within which the radially disposed spindles 9 arejournaled. For this purpose said pedestal 31 is concentrically mountedwith the axis of the shaft 5.

What I claim is:

1. In a rotary engine, a stator member and a rotor member, one of saidmembers being provided with a fixed abutmentand the other of saidmembers being provided with a blade movable continuously at a uniformspeed into and out of position forming an expansion chamber with saidfixed abutment.

2. In a rotary engine, the combination with a housing provided with afixed abutment, of a rotor provided with a rotary blade, and means forcontinuously rotating said blade with a uniform speed in the samedirection-during the movement of said rotor.

3. In a rotary engine, the combination with a housing provided withannular grooves in opposite walls thereof, of a rotor comprising a diskcentrally disposed with respect to said grooves and having bladesrotatable about radially disposed axes into and out of positions closingthe cross sectional area of said grooves, and means operated by themovement of said rotor for rotating said blades continuously.

4. In a rotary engine, a statorprovided with a fixed abutment, a rotor,a blade journaled on an axis extending radially of said rotor, a gearsecured to said rotor and a gear mounted on said stator and geared tothe gear on said blade whereby said bladeis caused to rotatecontinuously in the same direction by the rotation of said rotor.

5. In a rotary engine, the combination with a rotor housing providedwith an annular throughway, of a rotor disk dividing said throughwayinto two oppositely dis: posed chambers, adjacently disposed fixedabutments in said chambers, rotary blades journaled on axes extendlngradially of said disk and in the central plane thereof, gears carried byeach of said blades, a gear fixed. to said housing, and gearingoperatively' connect-ing the blade gears to said fixed gear and adaptedto continuously rotate said blades in the same direction when said diskis rotated.

6. In a rotary engine, a housing provided" carried by said rotor, saidrotor and blades movements to periodically open and close being suitablyjourlrllaled to move said blades the said throughway. along said througway by the rotation of said rotor, and means actuated by the rota-ARTHUR CONDIT' 5 tion of said rotor for continuously rotating Witnesses:

said blades in the same direction, said blades A. O. KNIGHT, beingsuitably formed and adapted by their M. G. CRAWFORD.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. 0."

